package czk.concrent.cpucache;

import java.util.concurrent.CountDownLatch;

/**
 * @Author:ChenZhangKun
 * @Date: 2022/8/29 10:23
 */
public class T02_CacheLinePadding_Deprecated {

    public static long COUNT = 1_0000_0000L;


    private static class T {
        public long p1, p2, p3, p4, p5, p6, p7;
        public volatile long x = 0L;
        public long p9, p10, p11, p12, p13, p14, p15;

    }

    public static T[] arr = new T[2];

    static {
        arr[0] = new T();
        arr[1] = new T();
    }

    public static void main(String[] args) throws InterruptedException {
        CountDownLatch countDownLatch = new CountDownLatch(2);
        Thread t1 = new Thread(() -> {

            for (long i = 0; i < COUNT; i++) {
                arr[0].x = i;
            }
            countDownLatch.countDown();
        });
        Thread t2 = new Thread(() -> {

            for (long i = 0; i < COUNT; i++) {
                arr[1].x = i;
            }
            countDownLatch.countDown();
        });
        Long start = System.nanoTime();
        t1.start();
        t2.start();
        countDownLatch.await();
        Long end = System.nanoTime();
        // 1048
        System.out.println((end - start) / 100_0000);
    }
}
